To date, HTC has been quite clear that it has no plans to bring the HTC Touch HD to North America. So, it came as quite a surprise when the service manual for this device confirmed support for the North American 850 and 1900 HSDPA/UMTS bands.
So, what is going on? A couple of possible explanations spring to mind. Maybe HTC has had a change of mind. Or maybe it originally planned such a device but later canceled it (lack of interest by NA carriers perhaps?).
In the end, the HTC Touch HD is no closer to a North American release at this point but there is now a glimmer of hope.